Geoscience 40 iClicker Questions - Quiz 1

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To identical pots, filled with equal masses of fluid, on identical burners on a stove. Pot A is filled with a fluid of low heat capacity. Pot B is filled with a fluid of high heat capacity. A. The material in Pot A has reached higher temperature. B. The material in Pot B has reached higher temperature. C. Both pots are at the same temperature.

Hurricanes strengthen and gain energy by.A. Release of latent heat at high elevation within the eye, which causes air to warm-up and rise.B. Release of latent heat associated with melting of ice particles, which makes air heavier. C. Using their lion card. D. Absorbing heat from the sun. E. None of the above.

A. Release of latent heat at high elevation within the eye, which causes air to warm-up and rise.

How to calculate residence time

Total amount divided by input rate

Heat capacity is

the heat required to change the temperature by 1 degree of a given mass of material

10 coconuts fall on the beach each day. There are about 20 on the beach. Calculate the residence time.A. 1 day B. 2 daysC. 0.5 daysD. 20 days

B. 2 days

Phosphate has a shorter residence time than most major elements in seawater because A. It has an atomic mass that is much less than all other elements. B. It preferentially forms inorganic minerals when seawater evaporates. C. It is quite volatile and goes easily into the atmosphere. D. It is cycled very rapidly by organisms because it is essential to their metabolism. E. None of the above.

D. It is cycled very rapidly by organisms because it is essential to their metabolism.

Ocean chemistry is a balance between inputs and outputs. True or False?

True

Seawater salinity: which is/are true? A. The most abundant element dissolved in seawater is Cl. B. The element sodium is present in table salt and it is dissolved in seawater. C. The salinity of ocean surface water is generally higher than that of seawater. D. All of the above.E. A and B

E. A and B

Which of the following is/are true?A. Evaporation reduces the salinity of seawater. B. The average salinity of seawater is 70 oo/o. C. Mineral deposits, such as halite and gypsum represent outputs for chemicals in the ocean. D. The geochemical cycle includes wash, spin, and rinse. E. B and C.

C. Mineral deposits, such as halite and gypsum represent outputs for chemicals in the ocean.

Solubility of gases in seawater A. Gases dissolved more readily in warmer waterB. Cold freshwater can dissolved more gas than warm saltwater. C. Fishes need oxygen to live and they get that by breaking O molecules from H2O. D. A and BE. B and C.

E. B and C

Seawater salinity: which is/are true?A. The most abundant element dissolved in seawater is Cl. B. The element sodium is present in table salt and it is dissolved in seawater. C. All of the above. D. A and B.

C. All of the above

The concentration of dissolved oxygen in seawater is, in part, determined by: A. The water temperature B. The water salinity C. The relative amount of respiration D. The relative amount of photosynthesis E. All of the above

E. All of the above

Which of the following are correct associations? A. Salinity and thermocline, density and pysnncline, and temperature and laocline. B. Salinity and halocline, density and thermocline, and temperature and pycnocline. C. Salintiy and pycnocline, density and thermocline, and temperature and halo cline. D. Salinity and halocline, density and pycnocline, and tempearture and thermocline. E. None of the above.

D. Salinity and halocline, desnity and pycnocline, and temperature and thermocline.

Which of the following is/are correct? A. If more solar energy is retained by earth than reflected on reradiated, earth's atmosphere will warm. B. On average about 3% of incoming solar radiation is reflected back to space without an impact on Earth surface temperature.C. The sun radiates mostly short-wave energy (visible light), whereas the Earth radiates long-wave energy (infrared). D. So-called greenhouse gases absorb long-wave energy in the atmosphere and cause temperature to increase. E. All of the above.

E. All of the above

Which of the following statements is correct about the Earth? A. Incoming energy front he sun is the primary means of heating the tropics. B. Heat transfer from low to high latitudes plays an important role in the pattern of ocean currents and large-scale winds. C. Ocean currents and winds transfer heat from low to high latitudes. D. All of the above. E. None of the above.

D. All of the above

Why is there generally low pressure over the equator and high pressure at 30 degrees N and 30 degrees S?A. Lots of solar energy reach the equator and warms up the air, causing it to rise. B. The equator receives a surplus of energy relative to Polar Regions and this causes winds, in the upper atmosphere, the blow North and South away form the equator. C. Downward winds at 30 degrees N and 30 degrees S cause high pressure below them. D. All of the above.E. A and C.